11kV - 800kVA Cast Resin Dry Type Transformer , Three Phases , Two
Winding , Power Distribution
- Low loss, low noise, low partial discharge, high reliability.
- Strong capability with anti-short circuit, high anti-lightning
- HV coil is vacuum casted with epoxy resin with pressure,
capabilities for better the cast without pressure.
- Simulating analysis being used in the core model, the resonance can
be avoided and the noise is reduced. Simulation calculation and
analysis of lighting impulse wave are applied to the HV Coils;
anti-lighting impulse capability is improved.
The standard transformers with IP-class protective enclosure is
IP20. Subject to client need , we can also provide IP30 to IP40 .
Enclosure material is made by common steel plates,stainless steel
plants or aluminium alloy and can be acid-washed,parkerised and
The temperature controller can be installed on transformer body or
on the wall of enclosure ,which are reliable and convenient for
users to check.
Safe operation and working life of power transformers depends
largely on the safety and reliability of transformer winding. If
the temperature of transformer winding exceed the temperature which
insulation withstand, it will damage the insulation. This is one of
the most important reasons that transformers cannot operate
LD-B10 series temperature controller of dry transformer (Referred
to as temperature controller) is an intelligent controller designed
especially for safe operation of dry transformer. The temperature
controller features adoption of single chip computer technology and
utilization of the platinum thermo-resistors embedded in the
winding of the dry transformer for detection and of temperature
rise of the transformer windings. It can start or stop the cooling
fan automatically for forced air cooling of windings and control
over-temperature alarm and over-temperature tripping output so that
the transformer will be operated safely.
Cast Resin Dry Type Transformer, Low Noise, Low Loss and Low Partial Discharge.
|I Basic Information || || |
|1||Rated Voltage ratio||kV||11kV / 0.433 kV|
|1.02||Applicable Standards|| ||IEC 60076|
|1.03||Manufacturer|| ||Pearl Electric|
|1.04||Country of Origin|| ||China|
|II Electric Performance || || |
|2.06||Insullation Class|| ||Class H|
|2.07||Temperature Rise (@40℃ ambient temperature)||K||125K|
|2.08||Cooling Method|| ||AN|
|2.09||Tapping Ranging|| ||±2*2.5%|
|2.1||Vector Group|| ||Dyn11|
|2.14||Load Loss (@120℃)||W||8300|
|2.15||Local Partial discharge||pC||<10PC|
|2.16||Impulse Withstand Voltage (HV/LV)||kV||75/0|
|2.17||Power Frequency Withstand Voltage|
|2.18||Rated Duration of Short Circuit||s||2|
|III Materials & Accessories || || |
|3.01||Core Materials|| ||Silicon Steel Sheet|
|3.02||Winding Materials|| ||Copper conductor/foil|
|3.03||Insulation methods|| ||HV vacuum cast / LV impregnant|
|3.04||Main Insulation Materials|| ||Epoxy Resin|
|3.06||Sensor for Temperature Alarm and Trip||pcs||Yes, contact provided|
GB/T10228 , GB1094.11 , IEC60076-11 , DIN42523